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This patch enables creation of 64-bit zip files via make_archive().
make_archive uses ZipFile to create zip files. ZipFile already supports creation of 64-bit archives via a kwarg, but make_archive hard-codes it to 32-bit. This patch exposes the option in a backwards compatible way.

Would there be a way to automatically switch the flag as necessary?
(i.e. when writing more than 2GB, I guess)

> Would there be a way to automatically switch the flag as necessary?
> (i.e. when writing more than 2GB, I guess)
Yes, there is a special flag for this in zipfile. It is named allowZip64.
The only reason to use allowZip64=False is when you expect to unzip a zipfile with a tool which doesn't support zip64 (PKUNZIP.EXE for DOS?) and you want to keep yourself from unintentional zipping a file larger than 2 GiB.
Perhaps sometime we should to change the default value for allowZip64 from False to True.

> Yes, there is a special flag for this in zipfile. It is named
> allowZip64.
Then I think shutil should set allowZip64 to True by default.
People who want fine-grained control over the zipfile's characteristics can still use the zipfile module directly.

Agree.

Ok, here's a patch that makes zip64 the default in make_archive() when format='zip'.
I also agree that ZipFile should set allowZip64=True by default. (PKZIP has supported zip64 since 2001!)

This should be reflected in the documentation.

Documentation added. See attached.